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-----BEGIN PGP SIGNED MESSAGE----- =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2001.175 -- Debian Security Advisory DSA 050-1 New version sendfile fix local root exploit 30 April 2001 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: sendfile Vendor: Debian Operating System: Debian GNU/Linux 2.2 (potato) Linux Platform: Alpha Arm m68k PowerPC Sparc Impact: Root Compromise Access Required: Existing Account Ref: ESB-2001.169 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 - - ---------------------------------------------------------------------------- Debian Security Advisory DSA 050-1 security@debian.org http://www.debian.org/security/ Martin Schulze April 20, 2001 - - ---------------------------------------------------------------------------- Package : sendfile Vulnerability : broken privileges dropping, broken tempfile Type : local root exploit Debian-specific: no Colin Phipps and Daniel Kobras discovered and fixed several serious bugs in the saft daemon `sendfiled' which caused it to drop privileges incorrectly. Exploiting this a local user can easily make it execute arbitrary code under root privileges. We recommend you upgrade your sendfile packages immediately. wget url will fetch the file for you dpkg -i file.deb will install the referenced file. You may use an automated update by adding the resources from the footer to the proper configuration. Debian GNU/Linux 2.2 alias potato - - ------------------------------------ Potato was released for the alpha, arm, i386, m68k, powerpc and sparc architectures. Source archives: http://security.debian.org/dists/stable/updates/main/source/sendfile_2.1-20.2.diff.gz MD5 checksum: b5ba5230deef00b0cf815cb79edd5033 http://security.debian.org/dists/stable/updates/main/source/sendfile_2.1-20.2.dsc MD5 checksum: 48e5cc3435e2432e41299c31bb08f1a4 http://security.debian.org/dists/stable/updates/main/source/sendfile_2.1.orig.tar.gz MD5 checksum: cff003126595d8e77143c42ef898dc10 Alpha architecture: http://security.debian.org/dists/stable/updates/main/binary-alpha/sendfile_2.1-20.2_alpha.deb MD5 checksum: df6c0c2d24eeb20d8d4ca7ccce295f4f ARM architecture: http://security.debian.org/dists/stable/updates/main/binary-arm/sendfile_2.1-20.2_arm.deb MD5 checksum: cecd8e7489dfc4b663e3d99e63d8b086 Intel ia32 architecture: http://security.debian.org/dists/stable/updates/main/binary-i386/sendfile_2.1-20.2_i386.deb MD5 checksum: e519872a28daeb614e235650b7cd88bd Motorola 680x0 architecture: http://security.debian.org/dists/stable/updates/main/binary-m68k/sendfile_2.1-20.2_m68k.deb MD5 checksum: 313aa66e64c0509c041ff58a29be6c86 PowerPC architecture: http://security.debian.org/dists/stable/updates/main/binary-powerpc/sendfile_2.1-20.2_powerpc.deb MD5 checksum: a2d2a9829642c9d20efeb5443d17990c Sun Sparc architecture: http://security.debian.org/dists/stable/updates/main/binary-sparc/sendfile_2.1-20.2_sparc.deb MD5 checksum: 0e9722314cc01e8d0ad47781c1d0964c These files will be moved into ftp://ftp.debian.org/debian/dists/stable/*/binary-$arch/ soon. For not yet released architectures please refer to the appropriate directory ftp://ftp.debian.org/debian/dists/sid/binary-$arch/ . - - ---------------------------------------------------------------------------- For apt-get: deb http://security.debian.org/ stable/updates main For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main Mailing list: debian-security-announce@lists.debian.org Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg> - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.4 (GNU/Linux) Comment: For info see http://www.gnupg.org iD8DBQE632gcW5ql+IAeqTIRAhxmAKCmlfec/YLdVfDICtSjsstX0SEhhACgrB7g CWGv4ZwfeAwQ6LAKPsp8WP4= =4yk2 - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to use any or all of this information is the responsibility of each user or organisation, and should be done so in accordance with site policies and procedures. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the original authors to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: http://www.auscert.org.au/Information/advisories.html If you believe that your system has been compromised, contact AusCERT or your representative in FIRST (Forum of Incident Response and Security Teams). Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for emergencies. -----BEGIN PGP SIGNATURE----- Version: 2.6.3i Charset: noconv Comment: ftp://ftp.auscert.org.au/pub/auscert/AUSCERT_PGP.key iQCVAwUBOu1XaCh9+71yA2DNAQGqgAP+N/9C+gKE3GN71AF4zEW6F5Pde70lRgwW T2EZv4qhMe+Zu9MZfqtBM7Ap/yPATxrfhkNFGXHHODp8d/GTC0Zud342UQ7pDHFP lGzYA1wA2cfFJSBl+HytHbjTW5wQShqwpEoAKzjUcgMGECood5pil/hOz9zx97Kx NQXmGhzBdDA= =oX/F -----END PGP SIGNATURE-----